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- PDB-5acz: COMPLEX OF A B21 CHICKEN MHC CLASS I MOLECULE AND A 11MER CHICKEN... -

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Basic information

Entry
Database: PDB / ID: 5acz
TitleCOMPLEX OF A B21 CHICKEN MHC CLASS I MOLECULE AND A 11MER CHICKEN PEPTIDE
Components
  • 11MER PEPTIDE
  • BETA-2-MICROGLOBULIN
  • MHC CLASS I ALPHA CHAIN 2
KeywordsIMMUNE SYSTEM / CHICKEN / B21
Function / homology
Function and homology information


Transferrin endocytosis and recycling / Post-translational modification: synthesis of GPI-anchored proteins / ER-Phagosome pathway / Endosomal/Vacuolar pathway / Immunoregulatory interactions between a Lymphoid and a non-Lymphoid cell / DAP12 signaling / Antigen Presentation: Folding, assembly and peptide loading of class I MHC / antigen processing and presentation of peptide antigen via MHC class I / Neutrophil degranulation / cellular response to iron ion ...Transferrin endocytosis and recycling / Post-translational modification: synthesis of GPI-anchored proteins / ER-Phagosome pathway / Endosomal/Vacuolar pathway / Immunoregulatory interactions between a Lymphoid and a non-Lymphoid cell / DAP12 signaling / Antigen Presentation: Folding, assembly and peptide loading of class I MHC / antigen processing and presentation of peptide antigen via MHC class I / Neutrophil degranulation / cellular response to iron ion / peptide antigen assembly with MHC class II protein complex / MHC class II protein complex / negative regulation of forebrain neuron differentiation / peptide antigen assembly with MHC class I protein complex / regulation of iron ion transport / HFE-transferrin receptor complex / MHC class I peptide loading complex / positive regulation of T cell cytokine production / antigen processing and presentation of endogenous peptide antigen via MHC class I / antigen processing and presentation of exogenous peptide antigen via MHC class II / positive regulation of immune response / MHC class I protein complex / peptide antigen binding / positive regulation of T cell activation / positive regulation of receptor-mediated endocytosis / negative regulation of neurogenesis / cellular response to nicotine / negative regulation of epithelial cell proliferation / MHC class II protein complex binding / late endosome membrane / positive regulation of cellular senescence / protein homotetramerization / amyloid fibril formation / intracellular iron ion homeostasis / learning or memory / immune response / lysosomal membrane / structural molecule activity / Golgi apparatus / protein homodimerization activity / extracellular region / cytosol
Similarity search - Function
MHC class I-like antigen recognition-like / Murine Class I Major Histocompatibility Complex, H2-DB; Chain A, domain 1 / MHC class I alpha chain, alpha1 alpha2 domains / Class I Histocompatibility antigen, domains alpha 1 and 2 / Beta-2-Microglobulin / : / MHC class I-like antigen recognition-like / MHC class I-like antigen recognition-like superfamily / MHC classes I/II-like antigen recognition protein / : ...MHC class I-like antigen recognition-like / Murine Class I Major Histocompatibility Complex, H2-DB; Chain A, domain 1 / MHC class I alpha chain, alpha1 alpha2 domains / Class I Histocompatibility antigen, domains alpha 1 and 2 / Beta-2-Microglobulin / : / MHC class I-like antigen recognition-like / MHC class I-like antigen recognition-like superfamily / MHC classes I/II-like antigen recognition protein / : / Immunoglobulin/major histocompatibility complex, conserved site / Immunoglobulins and major histocompatibility complex proteins signature. / Immunoglobulin C-Type / Immunoglobulin C1-set / Immunoglobulin C1-set domain / Ig-like domain profile. / Immunoglobulin-like domain / Immunoglobulin-like domain superfamily / Immunoglobulin-like fold / Immunoglobulins / Immunoglobulin-like / Sandwich / 2-Layer Sandwich / Mainly Beta / Alpha Beta
Similarity search - Domain/homology
Beta-2-microglobulin / MHC class I alpha chain 2
Similarity search - Component
Biological speciesGALLUS GALLUS (chicken)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.69 Å
AuthorsChappell, P.E. / Roversi, P. / Harrison, M.C. / Kaufman, J.F. / Lea, S.M.
CitationJournal: To be Published
Title: Complex of a B21 Chicken Mhc Class I Molecule and a 11mer Chicken Peptide
Authors: Chappell, P.E. / Roversi, P. / Harrison, M.C. / Kaufman, J.F. / Lea, S.M.
History
DepositionAug 19, 2015Deposition site: PDBE / Processing site: PDBE
Revision 1.0Sep 28, 2016Provider: repository / Type: Initial release
Revision 1.1Jan 10, 2024Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Other / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_database_status / pdbx_initial_refinement_model / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_database_status.status_code_sf / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Revision 1.2Oct 16, 2024Group: Structure summary / Category: pdbx_entry_details / pdbx_modification_feature

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: MHC CLASS I ALPHA CHAIN 2
B: BETA-2-MICROGLOBULIN
C: 11MER PEPTIDE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)49,1694
Polymers49,1073
Non-polymers621
Water724
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area5200 Å2
ΔGint-21.8 kcal/mol
Surface area18180 Å2
MethodPISA
Unit cell
Length a, b, c (Å)71.610, 72.328, 72.815
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number19
Space group name H-MP212121

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Components

#1: Protein MHC CLASS I ALPHA CHAIN 2


Mass: 36862.012 Da / Num. of mol.: 1 / Fragment: EXTRACELLULAR DOMAIN, UNP RESIDUES 1-291
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) GALLUS GALLUS (chicken) / Strain: B21 / Production host: ESCHERICHIA COLI (E. coli) / Strain (production host): BL21(DE3) / Variant (production host): PLYSS ROSETTA / References: UniProt: Q95601
#2: Protein BETA-2-MICROGLOBULIN


Mass: 11062.404 Da / Num. of mol.: 1 / Fragment: UNP RESIDUES 22-119
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) GALLUS GALLUS (chicken) / Strain: B21 / Production host: ESCHERICHIA COLI (E. coli) / Strain (production host): BL21(DE3) / Variant (production host): PLYSS ROSETTA / References: UniProt: P21611
#3: Protein/peptide 11MER PEPTIDE


Mass: 1182.219 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) GALLUS GALLUS (chicken)
#4: Chemical ChemComp-EDO / 1,2-ETHANEDIOL / ETHYLENE GLYCOL


Mass: 62.068 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C2H6O2
#5: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 4 / Source method: isolated from a natural source / Formula: H2O
Has protein modificationY

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION / Number of used crystals: 1

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Sample preparation

CrystalDensity Matthews: 1.92 Å3/Da / Density % sol: 35.94 % / Description: NONE
Crystal growpH: 8.5 / Details: MOLECULAR DIMENSIONS E9, PH 8.5

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: Diamond / Beamline: I02 / Wavelength: 0.97
DetectorType: ADSC CCD / Detector: CCD / Date: Jan 17, 2011
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.97 Å / Relative weight: 1
ReflectionResolution: 2.69→72.33 Å / Num. obs: 10877 / % possible obs: 99.4 % / Observed criterion σ(I): 1 / Redundancy: 5.3 % / Rmerge(I) obs: 0.15 / Net I/σ(I): 12
Reflection shellResolution: 2.69→2.82 Å / Redundancy: 5.2 % / Rmerge(I) obs: 0.69 / Mean I/σ(I) obs: 2.7 / % possible all: 97.7

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Processing

Software
NameVersionClassification
REFMAC5.8.0124refinement
XDSdata reduction
Aimlessdata scaling
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 3BEV

3bev


Resolution: 2.69→51.31 Å / Cor.coef. Fo:Fc: 0.894 / Cor.coef. Fo:Fc free: 0.859 / SU B: 17.176 / SU ML: 0.347 / Cross valid method: THROUGHOUT / ESU R Free: 0.395 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS.
RfactorNum. reflection% reflectionSelection details
Rfree0.26697 474 4.4 %RANDOM
Rwork0.23879 ---
obs0.24007 10377 99.2 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK
Displacement parametersBiso mean: 30.917 Å2
Baniso -1Baniso -2Baniso -3
1-0.68 Å20 Å20 Å2
2---2.08 Å20 Å2
3---1.4 Å2
Refinement stepCycle: LAST / Resolution: 2.69→51.31 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3023 0 4 4 3031
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0070.0193113
X-RAY DIFFRACTIONr_bond_other_d
X-RAY DIFFRACTIONr_angle_refined_deg1.1251.9324229
X-RAY DIFFRACTIONr_angle_other_deg
X-RAY DIFFRACTIONr_dihedral_angle_1_deg5.1275375
X-RAY DIFFRACTIONr_dihedral_angle_2_deg38.27923.333159
X-RAY DIFFRACTIONr_dihedral_angle_3_deg15.94715484
X-RAY DIFFRACTIONr_dihedral_angle_4_deg10.5781526
X-RAY DIFFRACTIONr_chiral_restr0.0680.2431
X-RAY DIFFRACTIONr_gen_planes_refined0.0040.0212454
X-RAY DIFFRACTIONr_gen_planes_other
X-RAY DIFFRACTIONr_nbd_refined
X-RAY DIFFRACTIONr_nbd_other
X-RAY DIFFRACTIONr_nbtor_refined
X-RAY DIFFRACTIONr_nbtor_other
X-RAY DIFFRACTIONr_xyhbond_nbd_refined
X-RAY DIFFRACTIONr_xyhbond_nbd_other
X-RAY DIFFRACTIONr_metal_ion_refined
X-RAY DIFFRACTIONr_metal_ion_other
X-RAY DIFFRACTIONr_symmetry_vdw_refined
X-RAY DIFFRACTIONr_symmetry_vdw_other
X-RAY DIFFRACTIONr_symmetry_hbond_refined
X-RAY DIFFRACTIONr_symmetry_hbond_other
X-RAY DIFFRACTIONr_symmetry_metal_ion_refined
X-RAY DIFFRACTIONr_symmetry_metal_ion_other
X-RAY DIFFRACTIONr_mcbond_it0.5233.0581509
X-RAY DIFFRACTIONr_mcbond_other
X-RAY DIFFRACTIONr_mcangle_it0.9614.5851881
X-RAY DIFFRACTIONr_mcangle_other
X-RAY DIFFRACTIONr_scbond_it0.4673.1091604
X-RAY DIFFRACTIONr_scbond_other
X-RAY DIFFRACTIONr_scangle_it
X-RAY DIFFRACTIONr_scangle_other
X-RAY DIFFRACTIONr_long_range_B_refined
X-RAY DIFFRACTIONr_long_range_B_other
X-RAY DIFFRACTIONr_rigid_bond_restr
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
LS refinement shellResolution: 2.693→2.762 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.428 44 -
Rwork0.333 728 -
obs--97.6 %

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